h1{
    text-align: center;
}
.list{
    margin: 20px 400px;
    width: 760px;
}
tabel{
    width: 600px;
}
table,table th,table td{
    border: 1px solid black;
    border-spacing: 0;
    text-align: center;    
}
table th,table td{
    padding: 5px 20px;
}
#showGoods{
    margin-top: 50px;
    margin-left: 400px;
}
#shoppingCart{
    margin: 50px 0 0 900px;
}
#dialog-form{
    padding: 30px 50px;
}
#dialog-form table th,#dialog-form table td{
    padding: 3px 5px;
}